/**
 * 获取token
 */
export function getToken() {
    return window.localStorage.getItem("Web-Token-stu")
}

/**
 * 写入token
 * @param token
 */
export function setToken(token) {
    return window.localStorage.setItem("Web-Token-stu", token)
}

/**
 * 清除token
 * @param token
 */
export function clearToken(token) {
    return window.localStorage.removeItem("Web-Token-stu")
}

/**
 * base64转Blob
 */
export function dataURLtoFile(dataurl, filename) {
    var arr = dataurl.split(","),
        mime = arr[0].match(/:(.*?);/)[1],
        bstr = atob(arr[1]),
        n = bstr.length,
        u8arr = new Uint8Array(n);
    while (n--) {
        u8arr[n] = bstr.charCodeAt(n);
    }
    return new File([u8arr], filename, {type: mime});
}
